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Ask Curtis B. Your Own Question

Curtis B., Technician

Category: Small Engine

Satisfied Customers: 16136

Experience: have worked on and around most engine models for 35 yrs./Polaris ATV expert

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I have a 1996 Yamaha G14 that's been sitting up for a few

Customer Question

I have a 1996 Yamaha G14 that's been sitting up for a few years. I've put on a new carb, fuel pump, fuel filter, air filter, and adjusted the valve clearance. It has good compression - 170 #. It runs good until I connect the air filter and then it bogs down. I'm at a loss. What do I need to do next?JA: I'll do all I can to help. How long have you been dealing with this?Customer: I just bought the cart about 6 weeks ago and I've been working on it off and on when I have the time.JA: Do you plan on doing the work yourself?Customer: I'm trying to. It depends on how deep it gets.JA: Anything else we should know to help you best?Customer: I also put in a new spark plug and new brushes in the generator.JA: What's the make and model of the generator? And can you guesstimate how old it is?Customer: I don't know the make. When I first got it the generator wouldn't turn over. When I checked the brushes they were worn and sticking badly. I figured the generator was original.

single cylinder. New fuel pump and filter and getting good flow. It won't run if I leave the air filter hose off - it backfires through the carb spitting fuel and flames. But if I hold the hose about 3/4 over the carb it runs good.

Exhaust is fine. I even disconnected the muffler from the engine and same thing - with air filter connected it bogs down. When I take it loose and hold it 3/4 over the carb intake it runs great. Remove the hose completely and starts backfiring.